Cultivator attachment for tractors



April 27, 1954 H. w. REUSTLE 2,676,527

T CULTIVATOR ATTACHMENT FOR TRACTORS' Filed Aug. 30, 1950 A tlorney Patented Apr. 27, 1954 UNITED STATE-S PATENT OFFICE CULTIVATOR ATTACHMENT FOR TRACTORS Howard W. Reustle, Vineland, N. J. ApplicationAugust 30, 1950, Serial No. 182,250

' 1 Claim. (Cl. 37-1981) This invention relates to a novel cultivator attachment for tractors and more particularly to an attachment which is capable of being quickly and easily adjusted to cultivate crop rows of different widths or wherein the spacing between adjacent rows is wider or narrower than the conventional distance between such rows.

Another object of the invention is to provide a cultivator attachment wherein any desired number of cultivating shovels may be supported thereon for cultivating the earth between two adjacent rows of crops.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawing, illustrating a presently preferred embodiment thereof, and wherein:

Figure l is a side elevational view, partly broken away, showing a conventional tractor with the attachment applied thereto;

Figure 2 is an enlarged horizontal sectional view of a portion of the attachment taken substantially along a plane as indicated by the line 22 of Figure 1;

Figure 3 is an enlarged fragmentary side elevational view of a part of the attachment;

Figure 4 is a vertical sectional view thereof taken substantially along a plane as indicated by the line 4-4 of Figure 3;

Figure 5 is a horizontal sectional view of a part i of the attachment taken substantially along a plane as indicated by the line 5--5 of Figure 4, and

Figure 6 is a view similar to Figure 2 but showing the parts differently positioned.

Referring more specifically to the drawing, the numeral 1 designates generally a conventional tractor having a laterally extending frame part 8 to which an upright supporting member 9 of angle iron is secured by suitable fastening means Ill. The rear end of an upper rig link II is pivoted at l2 to the upper portion of the bracket 9 and a lower rig link I3 is pivotally connected at M, near its rear end, to the lower end of the bracket 9. Said lower rig link 3 has a downwardly curved hook-shaped rear end l5, the lower, free end of which is pivotally connected at Hi to the forward end of a lift pipe or link H, the rear end of which is connected at l8 to a manually or hydraulically actuated crank I!) which is adapted to be actuated for exerting a thrust or pull on the link to swing the lower rig link l3 in either direction in a vertical plane on its pivot I4. The parts previously described are all of conventional construction.

The improvement in the cultivator attachment includes a modified rig coupling, designated generally 20, including two upright plates 2| which rise perpendicularly from a disk or plate 22 and are rigidly secured thereto as by welding, as indicated at 23. The upright plates 2| are connected at one or more points by a rivet 24 which extends therethrough and which carries a spacing sleeve 25 which is disposed between and the ends of which abut against the inner sides of the plates 2|. A journal pin 26 extends between the plates 2|, near their upper ends, and the forward end of the upper rig link II is pivotally connected to the rig coupling 2|? by engagement with the pivot pin 26. The forward end of the lower rig link I3 turnably engages a pivot pin 21 which extends between and is connected to the plates 2|, near their lower ends, for pivotally connecting said link I3 to the coupling rig 2B and below the link so that when the forward end of the link I3 is swung vertically in either direction by movement of the actuating crank I9, as previously described, the forward end of the upper link U will move in unison therewith so that the rig coupling 20 will be displaced upwardly or downwardly while maintaining substantially a vertical position and with its disk 22 maintained in substantially a horizontal plane. The rig coupling may be provided with a conventional depth adjustment 2B.

The disk 22 is provided with a central opening 29 and two diametrically aligned openings 30 which are disposed adjacent portions of the periphery of said disk.

The invention also includes a second disk 3| of the same diameter as the disk 22 which is provided with a central opening 32 and a plurality, preferably twelve (12) openings 33 which are disposed around the opening 32 and spaced therefrom a distance corresponding to the spacing between the opening 29 and openings 30. Each of the plurality of openings 33 is disposed in diametrical alignment with another opening 33 of said disk 3|, so that the disk 3| may be turned to position different of the openings 33 in registration with the openings 30 of the disk 22. A sleeve 34 is disposed against the underside of the disk 3| and secured thereto as by welding, as seen at 35, said disk having aligned openings 33 intermediate of its ends which register with the central opening 32 of disk 3|. The sleeve 34 is of a length substantially less than the diameter of the disk 3| so that the ends of said sleeve are spaced inwardly with respect to the openings 33. A pipe or tube 31 extends slidably and turnably through the sleeve 34 and is provided with an opening 38 intermediate of its ends which is adapted to register with the openings 36 for receiving the shank of a headed bolt and nut fastening 39 which extends downwardly through the openings 29 and 32 and thence through the openings 36 and 38 for connecting the disks 22 and 3! together at their centers and for rigidly and detachably' securing the pipe 3 l inthe sleeve?- 34. The pipe 31 maybe provided with addi-' tional openings 48, spaced from its center open.- ing 38, as indicated in dotted lines in Figure 31,

which openings may be selectively; aligned withthe openings 36 to receive the shank of the fas tening 39 so that one end of thepipeifl willex tend a greater distance away from'the'disks 22' meanssfor attaching same to a vehicle in a horiand 3| than the other end ofisaidzpipe." Qnerv or" more clamps 4| is adjustably mounted on each end of the pipe 31 so thatsaid clamps 4'Imay be loosened for movement toward or away from the". ends of the-pipe=3 shovel shaiil r' 42 1s adjustably clamped in each claI-n'p' M and ex tends downwardly therefrom. lilaoh "slzcank fl supports a conventional cultivatorshoverw on its. lower end and is -equippe'd with a; conven tional trip springunit '44.

The disk 3| can be:turne'd omtIie' shanPr-of the: fastening. 39 asan axis so -that anytw'o di ametrically aligned op'enings-33 thereof wilrregi' ister withthetopenings iiuiofthe disk 22 to re-- ceive the shanks of headed: bolt and: nut' fas tenings 45 by which; the disks are 'det'aiclia'blyarid adjustably connecteditoipositionthe=pipe 3l either transversely of the 'tractor' T. or at: anyan'glerelatively to the longitudinal axis; oi the tractor i I or even paraIIeLtIieret-o', if? desired,- so that the pipe 3"! may-conveniently travel between crop rows of different widths; Likewise; either-the inner orouter end of the pipe 31; considered" relatively to the longitudinal centeno'f the tra'ctor 1-, may be disposed inta forwardmost posi-' tion for accomplishing the:cultivatingpperation;

It will bereadily apparent that' another unit similar to the unit as seen in Figure: L Will bemounted on the opposite side of" the'tract'or 1- 40 so that the =shovels of the two units may cultivate on opposite sides: of:a'i croprow-and the pipes 31 of the two units "could hie-mounted imthe relationship of the: pipes as illustrated' inbFigiire's z'orit'alplane, a, disk disposed beneath the plate, meansswivelly connecting the disk to the plate, a sleeve se'curd'to the underside of the disk and diametribally. thereof, an elongated supporting member extending loosely through the sleeve 'havingpultivator shovel supporting end portions verse openings for adjustablypositioning the end portions of the supporting member relatively to the sleeve and disleandto' positively anchor'the supporting member nonrotat'ablyinthe sleeve.

References Cited in th'e fil'e of this-patent UN I'IED STATES PA'I'ENTS' Number- Name Date.

576,748 Tanner --;E'eb: 9;,1891 804 105 Doolen- Nov. 7,1905 

